Figure 2

Experimental system for releasing a large amount of entrapped air into a baffle-drop shaft: (a) sketch of the experimental setup; (b) photo of the shaft bottom. PT, pressure transducer; FT, force transducer.

Experimental system for releasing a large amount of entrapped air into a baffle-drop shaft: (a) sketch of the experimental setup; (b) photo of the shaft bottom. PT, pressure transducer; FT, force transducer.